So it turns out that Reignited has kept that little Easter egg of being able to carry across the permanent Superflame to another save file. If you have previously completed Spyro 2 and unlocked the Superflame, any subsequent new playthroughs of Spyro 2 on a different save file will have the Superflame available from the beginning.
Now, this is pretty cool, but the problem is that there doesn't appear to be a way to disable it! I haven't tested it, but I'm guessing that the only way to prevent this from happening would be to delete any save files with the Superflame gained before starting a new game, which would be a shame- especially since a save file holds progress for all 3 games.
I just wish that they had included a choice as to whether or not you wanted it active, as it makes a run through the game ridiculously easy. Or is there a way to turn it off that I'm missing?

EDIT- ok, further to this, someone has reported on reddit that just deleting the save file isn't enough, and that you have to fully delete your save data in the ps4 menu. This seems a bit impractical to me. I really hope there will be a patch for this in the future- as much as I love the Superflame, I don't need the game to be that easy permanently lol!